<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<form action="">
  <input type="text" name="username" placeholder="用户名" v-model="username"><br>
  <input type="text" name="password" placeholder="密码" v-model="password"><br>
  <input type="checkbox" name="rem">记住用户名和密码<br>
  <input type="button" value="登录" @click="login()">
</form>
<!--引入CDN服务器的框架文件-->
<script src="https://cdn.bootcdn.net/ajax/libs/axios/0.21.1/axios.min.js"></script>
<script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/vue/2.6.14/vue.js"></script>

<script>
  let v = new Vue({
    el:"form",
    data:{
        username:"",
        password:""
    },
    methods:{
      login:function () {
        let data = new FormData(document.querySelector("form"))
        axios.post("login",data).then(function (response) {
            if (response.data==1){
                alert("登录成功")
                location.href="/";
            }else if(response.data==2){
                alert("用户名不存在")
            }else {alert("密码错误")}
        })
      }
    }
  })

  //取出cookie里面的用户名和密码
  let cookieArr = document.cookie.split(";")
  for (let str of cookieArr){
      let arr = str.split("=");
      let name = arr[0].trim();
      let value = arr[1];
      if(name=="username"){
          v.username=value;
      }
      if (name=="password"){
          v.password=value;
      }
  }


</script>
</body>
</html>